Research the causes of related medical symptoms such as: 1  Eye. 2  Eye symptoms (5412 causes) 3  Eye disease. 4  Eye disorder. 5  Eye problem (5412 causes) 6  Eye pain (475 causes) 7  Itch (1068 causes) 8  more symptoms...Â».
How to read the Histogram. A histogram is a graphical representation of the pixels exposed in your image. The left side of the graph represents the blacks or shadows, the right side represents the highlights or bright areas and the middle section is mid-tones (middle or 18% grey).
1 A histogram is a graphical method for displaying the shape of a distribution. It is particularly useful when there are a large number of observations. 2  To create this table, the range of scores was broken into intervals, called class intervals. The first interval is from 39.5 to 49.5, the second from 49.5 to 59.5, etc.